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石山口水库是淮河流域上游的重要控导工程,已列入国家除险加固实施计划。本文是笔者在水库除险加固中,对主坝进行工程地质问题勘察、技术评价和科学研究的成果。本文的主要内容包括对地形地貌、地层岩性、地质构造等工程地质条件的分析;对石山口水库主坝坝基存在的坝基灰色软土问题、坝基渗流及承压水问题、坝肩绕渗问题等主要工程地质问题进行了概括;最后从坝基灰色软土、坝基渗流稳定及承压水、坝肩绕渗三个方面做出结论。
Shishankou reservoir is an important control project in the upper reaches of the Huaihe River basin and has been included in the implementation plan of national hazard elimination and reinforcement. This article is the author in the reinforcement of the reservoir, the main dam engineering geological survey, technical evaluation and scientific research results. The main contents of this paper include the analysis of engineering geological conditions such as topography, stratigraphy lithology and geological structure, etc .; analysis of dam foundation gray soft soil problem, seepage and confined water of dam foundation, And other major engineering geological problems are summarized. Finally, conclusions are drawn from the three aspects of gray soft soil in dam foundation, seepage stability of dam foundation, infiltration of confined water and dam abutment.